How Does a Cantilever Beam Impact Structural Calculations?

[xperty]

1. Homework Statement

Homework Equations

I am totally confused about this question because of the Cantilever beam. I am usally ok with these questions but the addition of the Cantilever beam has thrown me off.

The Attempt at a Solution

Only been attemped without Cantilever beam.

 

[p21bass]

For which part are you confused? Go about it like you would for a simply supported beam. It doesn't matter that the roller support isn't on the end.

 

[xperty]

I am confused to whether the Cantilever beam effects the reactions at each support and where it will make a difference in this question.

 

[p21bass]

The fact that it's a cantilever doesn't affect anything, really. It just means that the support isn't on the end. You still go about your static equilibrium equations the same way and work from there. If it helps, just think of it as an unknown force. Were this a fixed support (with only one fixed support), then that would change things a little. But this problem works just like a regular, simply-supported beam.

Also, just a little hint for part B - you'll still have the shear force as 0 at both ends of the beam.

 

[xperty]

Ok thanks.

 

[xperty]

This is my attempt at finding the reactions at each support. I would appreciate it if you could tell me if i have went wrong.

 

[nvn]

xperty: You are doing fairly well, but you currently omitted one applied load in your summation(Fv). You also omitted two forces in your summation(Ma). Try again. Also, please do not post wide images directly to the forum page. Just post a text link to wide images.

 

[xperty]

Ok, thank you for some guidance. This is my second attempt at it: http://i54.tinypic.com/2who9ow.jpg

 

[nvn]

xperty: Excellent work. Your answer in post 8 is correct.

 

[xperty]

Thank you :D